Function getdtablesize 

#[unsafe(no_mangle)]
pub extern "C" fn getdtablesize() -> c_int

👎Deprecated

See https://pubs.opengroup.org/onlinepubs/7908799/xsh/getdtablesize.html.

Deprecation

The getdtablesize() function was marked legacy in the System Interface & Headers Issue 5, and removed in Issue 6.